First, it's true that many believers are pathetically ignorant. This is a genuine cause for shame and concern, since we are called to love God "with our whole mind," which I take to mean with our whole mental capacity. It can't be doubted that most of us took 10th grade geometry much more seriously than the truths of the Faith, and I'd be willing to bet that many people stick at about that point for the rest of their lives.
But second, mile-wide-inch-deep learning such as Comparative Religions 101 at the State University doesn't count for much: and that's what was surveyed in this little quiz. Think, which of these people --- contemporaries of almost 100 years ago --- know more "about religions": Lucia Santos (Link) or Vladimir Lenin?
True, and telling, as is a lack of hunger for such.
Are you suggesting that Catholic parishes should spend time teaching religious education students (children or adults) about Greek mythology, the beliefs of Hindus and Moslems, or the history of non-Catholic religious groups in the United States? I believe this kind of instruction belongs in schools, which is where I learned enough to answer every question from the Pew survey that has reached FR.
And what would be the point? To impress atheists with our ability to get $100 Jeopardy questions right?
There is no denial. I read the original thread here on Free Republic and concluded almost immediately the same things in this article. It isn’t rocket science.
Knowledge of your religion is not the same as knowledge about religions.
How hard is that to understand?
No denial whatsoever.